All Are Friends Montessori in San Mateo, CA serves 28 students in pre–kindergarten through kindergarten in a nonsectarian, suburban setting.
Founded in 2003, this coeducational early childhood program operates with one teacher and a student–teacher ratio of 28:1.
The school represents racial and ethnic diversity with 50% students of color.
As a member of the American Montessori Society, the school follows Montessori principles in its early learning curriculum.
Located in a large suburb, All Are Friends Montessori offers a focused program for families seeking a San Mateo preschool option.
Quick Facts (2026)
- School Type: Early Childhood / Day Care
- Grades: Prekindergarten-Kindergarten
- Enrollment: 28 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-Kindergarten
Year Founded
2003
School Calendar
Student Body
Total Students
28 students
Student Body Type
Co-ed
% Students of Color
50%
State avg.: 51%
Students by Grade
Academics and Faculty
Total Classroom Teachers
1 teacher
Student-Teacher Ratio
28:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Application URL
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
When is the application deadline for All Are Friends Montessori?
The application deadline for All Are Friends Montessori is rolling (applications are reviewed as they are received year-round).
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